2030212391 has 2 divisors, whose sum is σ = 2030212392. Its totient is φ = 2030212390.

The previous prime is 2030212321. The next prime is 2030212421. The reversal of 2030212391 is 1932120302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2030212391 - 2¹⁰ = 2030211367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2030212321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015106195 + 1015106196.

It is an arithmetic number, because the mean of its divisors is an integer number (1015106196).

Almost surely, 2^2030212391 is an apocalyptic number.

2030212391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2030212391 is an equidigital number, since it uses as much as digits as its factorization.

2030212391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2030212391 is about 45057.8782345552. The cubic root of 2030212391 is about 1266.2335742891.

Adding to 2030212391 its reverse (1932120302), we get a palindrome (3962332693).

The spelling of 2030212391 in words is "two billion, thirty million, two hundred twelve thousand, three hundred ninety-one".